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Finding the Fourth Proportional to 7,329.90, 10,982.70 and 6,090.60

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Solution

The fourth proportional to 7,329.90, 10,982.70 and 6,090.60 is: 9,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.90 : 10,982.70 = 6,090.60 : x
  2. Step 2: Convert to fraction form
    7,329.90/10,982.70 = 6,090.60/x
  3. Step 3: Cross multiply
    7,329.90x = 10,982.70 × 6,090.60
  4. Step 4: Simplify right side
    7,329.90x = 66,891,232.62
  5. Step 5: Solve for x
    x = 66,891,232.62/7,329.90
  6. Step 6: Final answer
    x = 9,125.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.